Among the diverse collection of world class collector cars sold in Orange County, US, were two classic and lovingly-restored Chevrolets.

The first was a Chevelle SS 454 Convertible - a car whose back story is as impressive as the immense power under its bonnet.

The 1970 Chevelle SS 454 Convertible

Arguable the pinnacle of US muscle cars, this sought-after Chevelle SS 454 Convertible is the result of one collector's lifelong obsession and 20-year search to obtain it.

Targeted in his sights was this Fathom Blue and Pearl LS6 Chevelle convertible.

After two decades, the collector tracked it down, rescued the automobile and - with no expense spared - treated it to a frame-off restoration. By 2005, the Chevelle had been restored to its original glory.